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512253031 = 1093468667
BaseRepresentation
bin11110100010000…
…101110001100111
31022200220011001111
4132202011301213
52022114044111
6122455205451
715460036033
oct3642056147
91280804044
10512253031
11243176314
12123676887
1382185304
144c0651c3
152ee88a21
hex1e885c67

512253031 has 4 divisors (see below), whose sum is σ = 512722792. Its totient is φ = 511783272.

The previous prime is 512253017. The next prime is 512253037. The reversal of 512253031 is 130352215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512253031 - 25 = 512252999 is a prime.

It is a super-2 number, since 2×5122530312 = 524806335537373922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 512252993 and 512253011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512253037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233241 + ... + 235426.

It is an arithmetic number, because the mean of its divisors is an integer number (128180698).

Almost surely, 2512253031 is an apocalyptic number.

512253031 is a deficient number, since it is larger than the sum of its proper divisors (469761).

512253031 is a wasteful number, since it uses less digits than its factorization.

512253031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469760.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 512253031 is about 22633.0075553383. The cubic root of 512253031 is about 800.1317652754.

The spelling of 512253031 in words is "five hundred twelve million, two hundred fifty-three thousand, thirty-one".

Divisors: 1 1093 468667 512253031